About the site

Play a board, learn another choice

Play Gomoku, Reversi, Firecracker and Sudoku. Gomoku and Reversi support computer, same-device and guest online matches. Firecracker is a solo number-path stage challenge; Sudoku offers board sizes and difficulty levels. These two newer games currently have Korean controls. Each game page explains its rules and controls.

GosuClan is a place for browser games and conversations. We distinguish playable games from those still in development.

Rules used on this site

Gomoku uses a 15×15 board with Renju restrictions for Black: double-threes, double-fours and overlines are forbidden. Black needs exactly five; White five or more. Black starts without a tournament opening procedure. Reversi uses an 8×8 board, eight capture directions and forced passes; the final count decides when neither player can move. Details may differ from other sites or tournaments, so read each guide.

Games on this device and online games

Computer and same-device games run in the browser and save their progress, favorites and settings locally. Online games exchange moves and game state with a server using a guest session. There are no accounts, nicknames, free chat or public rankings.

Report bugs or incorrect explanations using the email on the contact page. Include the game, mode and steps to reproduce the issue.